7-1/8" Diam x 2-3/16" D; Weather-tight seal w/gasket; replaceable lens and bulb; surface mount on 6-1/4" centers; 2-wire; 1-bulb incandescent Lowest Prices for the best Trailer Lights from Optronics. 7" Round Transit Turn Signal Light - Amber part number ST90AB can be ordered online at etrailer.com or call 800-298-8924 for expert service.
$12.99

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7" Round Transit Turn Signal Light - Amber

 
 

Shipping Weight: 1 pounds

Retail:$13.95

Price:$12.99


Trailer Lights > Tail Lights > Turn > Non-Submersible Lights > 7 Inch Diameter > Incandescent Light > Amber > Round > Surface Mount > Optronics


7" Round Transit Turn Signal Light - Amber

Optronics Trailer Lights

Code:   ST90AB

Retail:$13.95

Price:$12.99


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Shipping Weight: 1 pounds

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Optronics Trailer Lights - ST90AB

7-1/8" Diam x 2-3/16" D; Weather-tight seal w/gasket; replaceable lens and bulb; surface mount on 6-1/4" centers; 2-wire; 1-bulb incandescent

7" Round Transit Turn Signal Light - Amber

This is a round transit light used as a turn signal light. This amber light is 7-1/8" in diameter by 2-3/16" deep. The light includes a gasket for a weathertight seal against the elements. The light features a replaceable, screw-down lens and easy-to-replace bulb. This light surface mounts through holes placed at the four "corners" along the edge of the light. The holes are spaced 6-1/4" across the light. The wiring design contains the lead wires for power and is grounded through the mounting hardware.

  • Amber, round light functions as turn signal light
  • Gasket is included to create weathertight seal
  • Replaceable lens and bulb
  • Wiring design contains lead wires and grounds through mounting hardware
  • Surface mounts with four holes at 6-1/4" apart across center of light
  • Dimensions: 7-1/8" Diam x 2-3/16" D

Manufacturer Specifications

Amber rear turn signal for surface mount. Gasket for water tight seal provided. Features screw on, replaceable lens and easy to change replaceable bulb. Contains both lead and ground wire for mounting to all surfaces.

dimensions of light

ST-90AB 7" Round Transit Light - Amber by Optronics, Inc.







Video of 7" Round Transit Turn Signal Light - Amber


Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.



Video Transcript for Optronics Trailer Lights ST90AB Review

Today, we're going to review part number ST90AB. This is the Optronics seven inch round transit turn signal light with the amber lens. This is an amber round light, which will function as a turn signal light. This light will surface mount using these holes right here on the outer edge. There is four holes. They are placed at the outer edge.

They are spaced six and a quarter inches across. If you measure directly across center to center, there is your six and a quarter inches. It does include this foam gasket. This helps create a weather tight seal for your light. The lens itself also is a replaceable screw down lens. You can unscrew the four screws, take the lens off, you can even access the bulb if you need to replace the bulb. The wiring design on this light: It takes one hot twelve volt wire.

It will ground through the mounting hardware so when you install your mounting hardware to install this on the vehicle, that is what will ground to the vehicle or the trailer, wherever you're hooking it to. I'm going to give you a few dimensions on this. Again, the diameter edge to edge will be right at seven and one eighth inches. The depth from the front to the back, it's going to be right at two and three sixteenths. Again, I mentioned here is the mounting holes we talked about. If we go center to center, six and a quarter inches. What I'm going to do is plug this in to our twelve volt power supply to give you an idea of how bright this turn signal light is.

What we're going to do is take the power wire, we'll go ahead and hook that to the wire lead coming out. For grounding, what I'm going to do is use one of these screws right here to get a good ground. Actually, when you go to install it, when you put your mounting screws in here to install this, that's where you'll get your ground from. We'll go ahead and hook it up to here. Now, what I'm going to go ahead and do is turn off the overhead lights, go ahead and turn on the twelve volt power, and there is how bright your light would be as a turn signal. Very large, bright light.

I'm going to turn off our power, turn back on our overhead lights. That should do it for the review of part number ST90AB. This is Optronics seven inch round transit turn signal light with the amber lens. .



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  • 2001 Chevy Silverado 3500 Tail Lights Not Working and Brake Signal on 7-Way Not Working
  • From what I have been able to find, the 2001 Chevy Silverado 3500 had what is called a 3-wire system. This means the turn signals are separate from the brake lights. If the lights you are using are designed for a 2 wire system then it they will not function properly. There are 2 possible options. First, you can get lights that do have separate turn signal functions. Second you can use a special converter on the truck wiring to take the separate signals and combine them to a 2-wire system...
    view full answer...

  • Is there a Signal Contact Version of the Optronics Dual Face Trailer Parking/Turn Signal Post Mount
  • According to my contacts at Optronics they do not offer a single wire system. The wires on this particular light are as follows: Red wire - parking light Black wire - turn signal Furthermore this light grounds through the mounting bolt to the trailer. I have checked our and we do have the Optronics 7 Inch Round Transit Turn signal # ST900AB that only has one wire. This light serves as a turn signal only and is a single sided light not double sided like the product that you...
    view full answer...


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Info for this part was:


Photos by:
Theodore B

Updated by:
Laura H

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